Within easy walking distance is the historic landmark of Llanberis, Dolbaden Castle. Built 800 years ago to guard against English invaders the circular keep rises up from a hillock between the twin lakes of Padarn and Peris. - access is free all year round.

At the Welsh Slate Museum the story of slate is introduced by a 3D show and demonstrated by craftsmen. Other attractions include historic quarrymen's houses, a giant waterwheel and a children's activity area. Throughout the year there are special events such as demonstrations of metal casting. - open all year, entrance is free.